In our little group we have lost 3 quick drive belts, all were broke in I would say 80 to 90 percent as required, hard to do 100%. The mileage-- 200 to 560. So does any body have any real hard facts on the C3 belt drive coversion?? We can all think something but I'm looking for real world facts. Miles -- power-- tracks--it works-- or maybe even save your $950.00 its no better than stock. Help!!! thanks